客车螺旋式手制动机的齿轮外壳为半密闭式,虽在厂段修时,进行分解、清扫、给油,但由于洗刷车皮的自来水和雨水的流入以及运行中灰尘的落入,造成齿轮盒内泥垢较多,齿轮锈死,不能保证在一个定检期内作用灵活。为使手制动机经常保持良好状态,在车辆整备时,多数需对该齿轮盒进行分解、清扫、给油。 Passenger car spiral hand brake gear housing is semi-airtight, although the repair in the plant, the decomposition, cleaning, to the oil, but because of the washing water rinse water and rain into the operation and the fall of dust, resulting in gear More dirt box, gear rust, can not guarantee a fixed inspection period flexible role. In order to make hand-brake often maintain good condition, when the vehicle is being prepared, most of the gear box needs to be decomposed, cleaned and lubricated.